DEFINITION MODULE AdvMap ;

FROM AdvMath IMPORT MaxNoOfTreasures ;

EXPORT QUALIFIED Rooms, Line, DoorStatus, Door, Room, Treasure,
                 ActualNoOfRooms, MaxNoOfRooms,
                 WallsPerRoom, DoorsPerRoom,
                 NoOfRoomsToHidePlayers, NoOfRoomsToSpring,
                 NoOfRoomsToHideCoal, NoOfRoomsToHideGrenade,
                 TreasureKind,
                 Adjacent, IncPosition,
                 FileName, MaxLengthOfFileName ;


CONST
   MaxNoOfRooms           = 350 ;  (* An upper limit *)
   WallsPerRoom           =  12 ;  (* An upper limit *)
   DoorsPerRoom           =   8 ;  (* An upper limit *)

   MaxLengthOfFileName    =  11 ;
   NoOfRoomsToHidePlayers =  50 ;
   NoOfRoomsToSpring      =  50 ;
   NoOfRoomsToHideCoal    =  50 ;
   NoOfRoomsToHideGrenade =  50 ;


TYPE
   Line         = RECORD
                     X1 : CARDINAL ;
                     Y1 : CARDINAL ;
                     X2 : CARDINAL ;
                     Y2 : CARDINAL
                  END ;

   DoorStatus   = (Open, Closed, Secret) ;

   Door         = RECORD
                     Position    : Line ;
                     StateOfDoor : DoorStatus ;
                     LeadsTo     : CARDINAL
                  END ;

   TreasureKind = (unused, respawnnormal, respawnmagic,
                   onperson, onfloor, normal, magic) ;

   TreasureInfo = RECORD
                     Xpos         : CARDINAL ;
                     Ypos         : CARDINAL ;
                     Rm           : CARDINAL ;
                     Tweight      : CARDINAL ;
                     TreasureName : ARRAY [0..12] OF CHAR ;
                     kind         : TreasureKind ;
                     amount       : CARDINAL ;  (* number of arrows.  *)
                  END ;

   Room         = RECORD
                     NoOfWalls   : CARDINAL ;
                     NoOfDoors   : CARDINAL ;
                     Walls       : ARRAY [1..WallsPerRoom] OF Line ;
                     Doors       : ARRAY [1..DoorsPerRoom] OF Door ;
                     Treasures   : BITSET ;
                  END ;


VAR
   ActualNoOfRooms : CARDINAL ;
   Treasure        : ARRAY [1..MaxNoOfTreasures] OF TreasureInfo ;
   Rooms           : ARRAY [1..MaxNoOfRooms] OF Room ;
   FileName        : ARRAY [0..MaxLengthOfFileName] OF CHAR ;


(* Tests to see if two rooms are Adjacent to each other.                *)

PROCEDURE Adjacent (R1, R2: CARDINAL) : BOOLEAN ;


(* Increments the position of x, y by the direction that are facing     *)

PROCEDURE IncPosition (VAR x, y: CARDINAL ; Dir: CARDINAL) ;


END AdvMap.